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Created by Cleveland show-runners & improvisers, Deena Nyer Mendlowitz & Sam Dee, who got excited about a weekend highlighting female run shows & improv troupes! Their first fest debuted at Forest City Brewery Oct. 4th, 5th & 6th of 2018 with loads of workshops, improv & local performances to packed crowds. Mass Hysteria is Created by women, for everyone! Our second coming will be at Mahall’s in September of 2019!